Review Article

Therapeutic Effects of Punica granatum (Pomegranate): An Updated Review of Clinical Trials

Table 1

Summary of clinical trials using Punica granatum (pomegranate) in endocrine disorders.

DiseaseTreatmentNo. of patientsStudy designDosage/durationOutcomesReferences

Erectile dysfunction(i) PJ
(ii) Placebo juice
61Double‐blind, RCT8 ounces daily/two 4-week treatment periods separated by a 2-week washoutImprovement of GAQ scores.[36]
Idiopathic central precocious puberty(i) Pomegranate extract juice + GnRH analog
(ii) Placebo + GnRH analog
225Double‐blind, RCT100 ml daily/3 monthsImprovement of bone age, growth velocity and height standard deviation score.[37]
Males with poor semen quality(i) Tablets containing extract of pomegranate fruit and freeze-dried rhizome of greater galangal
(iii) Placebo tablets
66Double‐blind, RCT4 tablets with extract of P. granatum and 4 tablets with A. galanga daily/3 monthsIncrease in the total number of motile spermatozoa in plant extracts versus placebo ().[38]
Non-alcoholic fatty liver disease(i) PJ
(ii) Orange juice
65Un-blinded, RCT250 ml daily/12 weeksIncrease in TAC in the pomegranate group ().[39]

Gynecology and obstetrics
Obese premenopausal women with non-alcoholic fatty liver disease(i) Xanthigen™ (brown marine algae fucoxanthin + PSO)
(ii) Placebo
151Double‐blind, RCTTDS/16 weeksReduction of weight, body, and liver fat content, and improvement of LFT in non-diabetic obese women.[40]
Heavy menstrual bleeding of endometrial origin(i) PG
(ii) TA
76Double‐blind, RCT500 mg PG every 6 h or 500 mg of TA/5 consecutive days from the first day of menses for 3 cyclesReduction in the duration of bleeding and improvement of QoL and hematological assessments.[41]
Uterine leiomyoma-related menorrhagiaPG19Pilot study (before/after style)5 ml syrup TDS for 7 days starting from the onset of heavy bleeding/3 consecutive menstrual periodsReduction of uterine fibroid size and leiomyoma bleeding and improvement of the QoL.[42]
Polycystic ovarian syndrome(i) SPJ, PJ, and SB
(ii) PB
92Triple-blinded, RCT2 L weekly/8 weeksImprovement of insulin resistance, insulin, testosterone level, BMI, weight, and waist circumference in PCOS.[43]
Polycystic ovarian syndrome(i) SPJ, PJ, and SB
(ii) PB
92Triple-blinded, RCT300 ml daily/8 weeksImprovement of metabolic, oxidative, inflammatory, and BP consequences in PCOS.[44]
Vasomotor symptoms of menopause(1) Black cohosh
(2) Multibotanical (black cohosh, alfalfa, chaste tree, dong quai, false unicorn, licorice, oats, pomegranate, Siberian ginseng, boron)
(3) Multibotanical plus dietary soy counseling
(4) Conjugated equine estrogen with or without medroxyprogesterone acetate
(5) Placebo
351Double‐blind, RCTFour capsules daily/one yearBlack cohosh alone or in combination with multibotanical product had little effect on alleviation of vasomotor symptoms.[45]
Menopausal symptoms(i) Pomegranate seed oil
(ii) Placebo
81Double‐blind, RCTTwo capsules daily/12 weeksPGS in postmenopausal women could not show reduction in hot flashes during a 12-week period.[46]

Rheumatic disorders
Rheumatoid arthritisPOMx6Pilot study (open-labeled)10 ml daily/12 weeksReduction of DAS28 in RA patients due to its antioxidant effects.[47]
(i) POMx
(ii) Placebo
55Double‐blind, RCT2 capsules of 250 mg POMx or cellulose/8 weeksImprovement of disease activity and some blood biomarkers of inflammation and oxidative stress in RA patients.[48]
Knee osteoarthritis(i) PJ
(ii) Control
38Parallel-RCT200 ml daily/6 weeksImprovement of physical function and stiffness and antioxidant properties in patients with knee OA.[49]
(i) Pomegranate peel, hydro alcoholic extract along with standard treatment
(ii) Placebo along with standard treatment
60Double‐blind, RCT500 mg twice daily/8 weeksReduction of pain and improvement of symptoms in women with knee OA.[50]

Renal disorders
NephrolithiasisPomegranate polyphenol extract30Pilot study1000 mg daily/90 daysAn increase in PON1 activity in RSFs with a trend toward reducing in SSCaOx.[51]
Hemodialysis(i) PJ
(ii) Placebo juice
101Double‐blind, RCT100 ml three times a week/one yearImprovement of clinical outcomes, cardiovascular risk factors, innate immunity and reduced incidence of hospitalization due to infections.[52]
(i) PJ
(ii) Placebo juice
27Double‐blind, RCT100 ml single-dose during the first hour of a dialysis sessionImprovement of oxidative stress and inflammation induced by IV iron during dialysis.[53]
(i) PJ
(ii) Placebo juice
101Double‐blind, RCT100 ml three times a week/one yearReduction of systolic blood pressure and improved lipid profile.[54]
(i) PJ
(ii) Pomegranate extract
24Open-label, cross-over clinical trial100 ml of juice before each dialysis or 1,050 mg of extract daily/12 weeksNo effect on inflammation or oxidative stress markers, lipid profile and blood pressure.[55]
(i) POMx
(ii) Placebo
33Double‐blind, RCT1000 mg capsule 7 days/week/6 monthsReduction of blood pressure and improvement of antioxidant activity, but had no effect on other markers of cardiovascular risk, physical function, or muscle strength.[56]
(i) PJ
(ii) Control: usual care
41Randomized cross-over trial100 ml after dialysis session three times a week/8 weeksImprovement of lipid profile, blood pressure, oxidative stress, and inflammation.[57]